JP2600532Y2 - In-vehicle anti-theft device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-theft device for a vehicle, and more particularly to a method of setting an operation state and displaying an operation setting state or an alarm operation state.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a conventional vehicle anti-theft device. 1 shown in the figure is a microcomputer, ROM
And a RAM, and operates according to a program written in the ROM and signals from the sensor input buffer 3, the setting switch 4, and the remote control receiving circuit 5, and outputs signals to the alarm output buffer 2 and a simple display such as an LED. .

[0003] Vehicle vibration, glass breakage, door opening and closing,
A signal from a sensor for detecting the start of the engine or the like is input to the microcomputer 1 via the sensor input buffer 3. The setting of the alarm time, sensor switching, sensor sensitivity, and other states is performed by the setting switch 4, and the output signal of the setting switch 4 is input to the microcomputer 1.

Signals to alarm devices such as horns, sirens and headlights are output from the microcomputer 1 and each alarm device is activated via an alarm output buffer 2. In addition, when an alarm is issued, a signal indicating which sensor has been activated is output from the microcomputer 1, and the signal causes a simple indicator such as an LED to blink, and the operating state of the sensor is reported by the number of blinks.

[0005]

[Problems to be Solved by the Invention] In the above-described conventional anti-theft device for a vehicle, setting of alarm time, switching of sensors, sensor sensitivity and the like is performed by a setting switch. Must be done visually.

After the above setting is completed, the operation of changing the setting is very troublesome because the apparatus is hidden under a sheet or behind a console.

When the driver is away from the vehicle and issues an alarm while the vehicle-mounted anti-theft device is operating, an LED is used to confirm which sensor has been activated by the driver.
Has to be determined based on the number of blinks of the symbol, and there is a disadvantage that it is very difficult to understand. If an easy-to-understand display device is provided, the cost will be greatly increased.

The present invention has been made in view of the above points, and a purpose thereof is to set a state of an alarm time, switching of a sensor, a sensor sensitivity, and the like in a display device located at a place remote from the device. It is an object of the present invention to provide an in-vehicle anti-theft device that can be operated by a key while watching.

Another object of the present invention is to provide an in-vehicle anti-theft device capable of displaying the operating status of the sensor on an easy-to-understand display device.

[0010]

The vehicle anti-theft device according to the present invention detects vehicle vibration, glass breakage, door opening / closing, engine starting, etc., and turns on a light, sounds a siren or activates a horn. In the in-vehicle anti-theft device that issues an alarm, the in-vehicle anti-theft device is connected by a signal line to an in-vehicle RDS receiver having a key input unit and a display unit for displaying alphabetic characters and Arabic numerals, and
The operation status of the in-vehicle anti-theft device is set by the key input unit of the DS receiver, and the operation setting status or alarm operation status of the in-vehicle anti-theft device is displayed by the display unit of the in-vehicle RDS receiver. It was done.

[0011]

According to the in-vehicle antitheft device of the present invention, the in-vehicle antitheft device is connected to the in-vehicle RDS receiver by a signal line, and the operation state of the in-vehicle antitheft device is set by the in-vehicle RD.
Since the setting is performed using the display unit and the key input unit of the S receiver, the setting of the operation state or the change of the setting can be performed very easily.

[Means for Solving the Problems]

In addition, since the operation status of the sensor and the like are displayed on the display unit for displaying the alphabetic characters and Arabic numerals of the on-vehicle receiver, it is easy to confirm.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle antitheft device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an in-vehicle antitheft device according to an embodiment of the present invention.

The microcomputer 1 disposed in the vehicle anti-theft device has a built-in ROM and RAM,
, And outputs signals to the alarm output buffer 2 and the serial signal line 11 by the signals from the sensor input buffer 3, the remote control receiving circuit 5, and the serial signal line 11.

Vehicle vibration, glass breakage, door opening and closing,
A signal from a sensor for detecting the start of the engine or the like is input to the microcomputer 1 via the sensor input buffer 3. Signals for alarm devices such as horns, sirens, and headlights are output from the microcomputer 1,
Each alarm device is activated via the alarm output buffer 2. Microcomputer 1, alarm output buffer 2,
The sensor input buffer 3 and the remote control receiving circuit 5 constitute an in-vehicle anti-theft device.

An RDS (Radio Data System) receiver comprises a microcomputer 6, a key input unit 10, a display unit 9, a receiving unit 7, and an amplifier 8 similar to those of the above-described in-vehicle antitheft device. Selects a mode or a receiving station by the key input unit 10 and displays it on the display unit 9 in the same manner as a normal RDS receiver. The microcomputer 6 sets the receiving station of the receiving unit 7 and the gain of the amplifier 8.

The microcomputer 6 and the microcomputer 1 are connected by a serial signal line 11, and signals are transmitted bidirectionally. As shown in FIG. 2A, the display unit 9 is formed of light-emitting segments so as to display eight letters or Arabic numerals.

In the above configuration, by pressing a key of the key input unit 10, a setting mode of the anti-theft device is set.
Thereafter, which setting of the anti-theft device is to be performed is selected by pressing a key of the key input unit 10, and the data is transmitted from the microcomputer 6 to the microcomputer 1 via the serial signal line 11.

The setting contents are displayed on the display unit 9.
FIG. 2B shows a display example when the alarm time is set to 30 seconds.

When data is sent from the serial signal line 11, the microcomputer 1 analyzes the data and sets an operation state.

When the setting of the operation state of the in-vehicle anti-theft device is completed, the RD is pressed by pressing a key of the key input unit 10.
The S receiver will act as a normal receiver. FIG. 2D shows a display state of the display unit 9 when the RDS broadcast is received.

When an alarm is issued during operation of the vehicle-installed anti-theft device, a signal is sent from the microcomputer 1 to the microcomputer 6 through the serial signal line 11,
Which sensor has been activated is displayed on the display unit 9. FIG. 2C shows a display state of the display unit 9 when the door is opened and closed and an alarm is issued.

As described above, the setting and confirmation of the vehicle-mounted antitheft device and the confirmation of the alarm condition at the end of the alarm can be easily performed.

Although the embodiment is constructed as described above, the invention is not limited to this. For example, a serial signal line is shared with a signal line between a CD changer, a CD player, and other audio equipment, and is used together with data. The identification code may be transmitted to distinguish the signal transmission destination.

[0025]

According to the anti-theft device of the present invention, the setting can be easily performed even when the anti-theft device for a vehicle is hidden in a place that is difficult to reach. It is also easy to confirm the alarm condition at the time of the end of the alarm.

In the RDS receiver shown in the embodiment,
Originally has a display unit that can display characters,
The processing for controlling the in-vehicle anti-theft device can be performed by changing the software of the microcomputer, so that the increase in cost is small. Moreover, the elimination of the setting switch of the in-vehicle anti-theft device is a factor in reducing the cost of the in-vehicle anti-theft device itself.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an in-vehicle antitheft device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a display unit of the RDS receiver used in the embodiment.

FIG. 3 is a block diagram illustrating an example of a conventional in-vehicle anti-theft device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microcomputer 2 Alarm output buffer 3 Sensor input buffer 4 Setting switch 5 Remote control receiving circuit 6 Microcomputer 7 Receiving part 8 Amplifier 9 Display part 10 Key input part 11 Serial signal line

Claims (1)

(57) [Scope of request for utility model registration] 1. An in-vehicle anti-theft device which detects vibration of a vehicle, breakage of glass, opening and closing of a door, starting of an engine, etc., and issues an alarm by turning on a light, sounding a siren or operating a horn. The anti-theft device is connected to the in-vehicle RDS receiver having a key input unit and a display unit for displaying alphabetic characters and Arabic numerals by a signal line, and the in-vehicle RDS receiver is operated by the key input unit. The on-vehicle anti-theft device configured to perform the above-mentioned settings and to display the operation setting state or the alarm operation state of the on-vehicle anti-theft device on the display of the on-vehicle RDS receiver.